Computer casing



FIG. 1 is a front view of a computer casing showing my new design;

FIG. 2 is a back view thereof;

FIG. 3 is a left front perspective view thereof;

FIG. 4 is a right back perspective view thereof;

FIG. 5 is a left end perspective view thereof;

FIG. 6 is a bottom perspective view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a front view of another embodiment of a computer casing showing my new design;

FIG. 9 is a back view thereof;

FIG. 10 is a front left perspective view thereof;

FIG. 11 is a right perspective view thereof;

FIG. 12 is a left perspective view thereof;

FIG. 13 is a bottom perspective view thereof; and,

FIG. 14 is a top perspective view thereof. 

The ornamental design for a computer casing, as shown and described. 